Description
IFM LDH100 Product Description
Technical Specifications
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Product Model: LDH100
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Brand: IFM Efector (Germany)
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Warranty: One Year
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Input Voltage: 9–33 V DC wide-range industrial operating voltage
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Operating Temperature: -20°C to 120°C (-4°F to 248°F)
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Storage Temperature: -40°C to 85°C (-40°F to 185°F)
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Response Time: 1.3s fast signal response for real-time oil condition monitoring
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Protection Class: Industrial high-pressure resistant structure with 50 bar pressure withstand capacity
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Accuracy Class: ±3% humidity measurement accuracy and ±2% temperature detection precision
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Output Frequency: Stable continuous analog signal output for 24/7 condition tracking
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Rated Current Range: Less than 25mA low power consumption steady-state current
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Communication Interface: Dual 4–20mA analog output ports, standard M12 connector and G3/4 thread interface
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Supported Protocols: Standard 4–20mA industrial analog signal transmission protocols
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Overload Capacity: Built-in industrial pressure resistance and circuit transient surge protection
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Dimensions: Compact threaded modular form factor for direct equipment mounting

Product Overview
The IFM LDH100 is a professional inline oil moisture and temperature sensor designed for industrial hydraulic and lubrication systems. Adopting high-precision capacitive measurement principle, it simultaneously detects oil relative humidity and medium temperature with reliable detection accuracy, effectively monitoring oil aging and moisture contamination risks. Featuring dual independent 4–20mA analog outputs, it achieves real-time data transmission and seamless connection with industrial control systems. With 50 bar high-pressure resistance and wide temperature adaptability, it operates stably in harsh fluid system environments. The integrated G3/4 threaded mounting and M12 connector enable fast installation and convenient maintenance. Widely applied in mechanical equipment lubrication circuits, hydraulic stations and process fluid monitoring systems, it provides accurate and long-term stable oil condition monitoring solutions for industrial operation and maintenance teams.







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